Guardian mission

While she accessed the forum, she did not forget to issue a warning to Severus. "Don't appear out of nowhere next time, we are in the human world, not the underworld." 

"I always check and appear when he is not looking or when he is asleep." Severus answered a bit arrogantly. 

He was not a careless hound or a stupid one, he knew what not to do. And he was very careful about that human husband of hers whose eyes always looked at him deeply as if they could see through him. Something about that man made him very unsettled. 

"It's a mission to find and return a missing artifact of one of the gods which is causing great strife in another world. Why does it say guardian reapers only?"